Curved shape actuator device composed of electro active layer and fiber composite layers
US7081701B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2002 |
| Grant date | Jul 25, 2006 |
| Priority date | — |
| Expiry date | Nov 10, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S310/80
Abstract
The piezo-composite curved actuator of the present invention includes a piezoelectric layer 10, a lightweight fiber-reinforced lower composite layer 20 with a high GTE (coefficient of thermal expansion) and a low modulus, which is placed under the piezoelectric layer, a lightweight fiber-reinforced upper composite layer 30 with a low GTE and a high modulus, which is placed on the piezoelectric layer, and an insulator layer 23 placed between the piezoelectric layer and the upper composite layer. The piezo-composite curved actuator may further include an insulator layer 24 placed on the upper composite layer. Also, the piezo-composite curved actuator may further include insulator layers 22 placed between the insulator layer 23 and the lower composite layer 20 at the both sides of the piezoelectric layer 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.